Notes:

* The estimate of median household income among older adult-headed households comes from the 2000 decennial census, which asked about income during 1999. Elsewhere on the Compass site this estimate is reported as 1999 data, but it is listed here in the 2000 column for comparison purposes. Income data have been inflation-adjusted and are shown in most recent year dollars.

** Babies with a birth weight under 2,500 grams (5lbs, 8 oz) are considered to be low birth weight.